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Title:
RAMJET DETONATION COMBUSTION ENGINE WITH FREE PISTON
Document Type and Number:
WIPO Patent Application WO/2019/000113
Kind Code:
A1
Abstract:
Disclosed is a ramjet detonation combustion engine with a free piston. The engine firstly eliminates most of the volume of a combustion chamber in a gasoline engine cylinder head, and a small cylinder combustion chamber (1) is used to replace the eliminated volume portion; a top end of the small cylinder combustion chamber (1) is provided with a sparking plug (2), and the small cylinder combustion chamber (1) is separated into two combustion chambers (7, 8), i.e., front and rear combustion chambers, by a free piston (4); the centre of the free piston (4) is provided with a small vent hole (5) and a ramjet combustion chamber (3); and a lower portion of the small cylinder combustion chamber (1) communicates with an engine cylinder (10). By means of the arrangements, the combustion chamber of the engine is not fully separated into the front and rear combustion chambers (7, 8) by the free piston (4). When the engine performs a working stroke, the sparking plug (2) ignites gas in the front combustion chamber (7) and drives the free piston (4) to perform ramjet combustion; and since the combustion is quick and effective self-boosting accelerated circulating combustion, initial free-diffusion combustion is quickly converted into detonation combustion, thus completing a combustion process and doing work for the engine. The engine realises the quick and complete detonation combustion and is an effective and environmentally friendly engine.

Inventors:
QIAN, Jinhu (Room 801, Unit 2Building 2, Tai'an Residential Quater of Xiangyang Traditional Chinese Medicine Hospital,Tai'an Road, Fancheng Distric, Xiangyang Hubei 1, 441001, CN)
Application Number:
CN2017/000408
Publication Date:
January 03, 2019
Filing Date:
June 27, 2017
Export Citation:
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Assignee:
QIAN, Jinhu (Room 801, Unit 2Building 2, Tai'an Residential Quater of Xiangyang Traditional Chinese Medicine Hospital,Tai'an Road, Fancheng Distric, Xiangyang Hubei 1, 441001, CN)
International Classes:
F02B23/08
Foreign References:
CN1082664A1994-02-23
US20170022883A12017-01-26
CN103620181A2014-03-05
US20030116120A12003-06-26
CN102337960A2012-02-01
JP2008297988A2008-12-11
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